NAVIGATOR Missions

PLEASE NOTE - the NAVIGATOR class is only available at certain regional competitions

DESIGN BRIEF

Ensuring Public Safety – Dam Inspection and Repair

Inspect the drains for indicators of possible dam failureo Identify areas of muddy water flowo Identify and determine the number of cracks

Insert grout into voids underneath the dam

Inspect and repair trash racko Remove debris over trash racko Remove the damaged screen of the trash racko Install a new screen

Maintaining Healthy Waterways

Monitor water qualityo Measure the water temperatureo Collect a water sample from the bottomo Use a water monitoring kit* to 1. Measure the pH of the water sample 2. Measure the phosphate levels of a water sample

Determine habitat diversityo Lift a rock from the bottomo Examine the benthic species underneath rocko Use a handbook to determine the number and type of benthic species

Record the date, time, temperature, pH, phosphate, and species diversity on a data sheet

Recover the Civil War era cannono Calculate the amount of force needed to lift the cannonCalculate the volume of the cannonDetermine the composition (specific gravity) of the cannonUse the cannon’s casting mark to identify the build location and build dateConsult a handbook to determine the compositiono Attach a lift bag to the cannon and inflateo Return the cannon to the surface, side of pool

Identify the location of metal cannon shellso Mark the cannon shell locations on a grid mapo Place markers at the cannon shell locations

*MATE will provide this kit.

SPECS

What follows is a summary of the electrical and fluid power requirements for the NAVIGATOR class. The complete design and building specifications will be included within the competition manual.

NOTE: Watch for new safety requirements and additional, detailed electrical specifications within the competition manuals.

12 volts, 15 amps DC. Conversion to lower voltages is permitted topside and on the ROV. Any onboard electrical power source is not permitted

Manually powered pneumatics and hydraulics are permitted. Pneumatic systems cannot exceed ambient pool pressure and must follow the fluid power specifications included within the competition manual.

SIZE AND WEIGHT POINT VALUES

All size and weight measurements will include the vehicle, all tools and components, and the tether. The topside control system and 1 meter of tether going into the control system will NOT be included in the length or weight measurement. To receive points for smaller sized vehicles, the two largest dimensions of the vehicle and tether must fit through a round hole of the following dimensions:

SIZE

SCORING

< 48cm diameter

+10

48.1cm to 60cm

+5

Vehicles above 60 cm in diameter will still be allowed to compete in the product demonstration, but will receive 0 points for size.

NOTE: In addition to the size and/or weight limitations described above, companies must be able to personally transport the vehicle and associated equipment to the product demonstration station and to the technical sales presentation room. The ROV systems must be capable of being safely hand launched.

RESOURCES

Teams are permitted to use the materials of their choice provided that they are safe, will not damage or otherwise mar the competition environment, and are within the defined design and building specifications.

Teams are encouraged to focus on engineering a vehicle to complete the product demonstration tasks; when considering design choices, teams should ask themselves which one most efficiently and effectively allows them to solve the problem. Re-using components built by previous team members is permitted provided that the current team members evaluate, understand, and can explain their engineering and operational principles. Using or re-using commercial components is also permitted, provided that team members evaluate, understand, and can explain their engineering and operational principles. Teams will be questioned extensively on their overall design and component selections during their technical sales presentations.

TIMEThe complete competition manual will be released by December 1st, 2018; teams have from that date until the regional events in the spring of 2019 to construct their vehicles and prepare the engineering and communication components (technical reports, engineering presentations, and poster displays). Visit the MATE website at www.marinetech.org or request to be added to the MATE competition listserve to ensure a timely delivery.